[URL="http://api.tweetmeme.com/share?url=http://espn.go.com/nfl/story/_/id/8199856/source-cincinnati-bengals-rookie-dre-kirkpatrick-2-4-weeks&service=bit.ly&source=espn"][IMG]http://api.tweetmeme.com/imagebutton.gif?url=http://espn.go.com/nfl/story/_/id/8199856/source-cincinnati-bengals-rookie-dre-kirkpatrick-2-4-weeks[/IMG][/URL]Cincinnati Bengals first-round pick Dre Kirkpatrick is expected to be sidelined six weeks with a fractured bone in his knee, according to the NFL Network.